56713887 has 12 divisors (see below), whose sum is σ = 86739120. Its totient is φ = 35585088.

The previous prime is 56713847. The next prime is 56713889. The reversal of 56713887 is 78831765.

56713887 is a `hidden beast` number, since 567 + 1 + 3 + 8 + 87 = 666.

It is not a de Polignac number, because 56713887 - 2¹¹ = 56711839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56713889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185187 + ... + 185492.

It is an arithmetic number, because the mean of its divisors is an integer number (7228260).

Almost surely, 2^56713887 is an apocalyptic number.

56713887 is a deficient number, since it is larger than the sum of its proper divisors (30025233).

56713887 is a wasteful number, since it uses less digits than its factorization.

56713887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370702 (or 370699 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 56713887 is about 7530.8623012242. The cubic root of 56713887 is about 384.2051109622.

It can be divided in two parts, 56713 and 887, that added together give a square (57600 = 240²).

The spelling of 56713887 in words is "fifty-six million, seven hundred thirteen thousand, eight hundred eighty-seven".